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Table 2 Initial hemodynamic readings taken in stage one

From: Non-invasive stroke volume measurement and passive leg raising predict volume responsiveness in medical ICU patients: an observational cohort study

 

All

Responders

Non-responders

P

Stroke volume (ml)

79 ± 29

68 ± 25

87 ± 30

< 0.001

Cardiac output (L/min)

7.4 ± 2.8

6.8 ± 2.5

8.0 ± 2.9

0.03

Corrected flow time (ms)

382 ± 70

363 ± 70

398 ± 66

0.01

Mean arterial pressure (mmHg)

71 ± 13

68 ± 13

74 ± 14

0.03

Pulse pressure (mmHg)

45 ± 15

42 ± 14

48 ± 15

0.02

Heart rate (beats/min)

96 ± 20

101 ± 20

93 ± 20

0.06

Central venous pressure

    

   Number of observations

59 (57.8%)

25 (53.2%)

34 (61.8%)

0.38

   Value (mmHg)

7.9 ± 4.8

7.8 ± 4.9

8.1 ± 4.8

0.80

  1. The P values given are for comparisons between the responders and non-responders. Except for the comparison of the central venous pressure, the Bonferroni adjusted level of significance for all P values shown is 0.01.
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Critical Care

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